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Author Topic: KWP2000, VAG Cars  (Read 1737 times)
brateq
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« on: March 02, 2016, 05:45:54 PM »

Hi all, at first sorry for my English i will try my best.

I've got a little problem to understand how KWP2000 in VAG cars is working.

I'm trying to get measuring blocks on Elm327.
In TP2.0 ( KWP2000 over the CAN ) it's working perfect however,
in KWP2000 i must set receiving ECU in header and here is my question.

Is there any possibility to set header or any other method to use logical VAG addresses ( 0x01 Engine, 0x03 ABS, 0x17 Instruments etc. )
After i read a lot of informations i can't figure it out for VAG cars...

After sniff VCDS when connecting to Instruments ( 0x17 ), data request from vcds looks like this:

81 61 F1 1A 92 CHECKSUM

This indicates that instruments ( vag logic 0x17 ) ECU physical address is 61. This physical address is same for every vag car?

Also i found opensource logger for KWP2000 and here are instructions for ELM327 to get transmission oil temp

AT IIA 26 <-- ( 26 physical address for transmission ecu? )

AT SH 80 02 F1 <-- ( VAG logic 02 for transmission )

I'm really confused...

Thanks for any help
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dope40
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« Reply #1 on: July 14, 2017, 04:01:30 PM »

Hi,

Here is a great explanation on the topic.

https://www.blafusel.de/obd/vag_kw2000.html
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superglitch
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« Reply #2 on: July 14, 2017, 09:20:42 PM »

Found on github some time ago related to VAG cars.

ECU = 0x01,
AUTO_TRANS = 0x02,
ABS = 0x03,
STEERING_ANGLE = 0x04,
ACC_START_AUTHORIZATION = 0x05,
SEAT_MEMORY_PASS = 0x06,
CONTROL_HEAD = 0x07,
AUTO_HVAC = 0x08,
CENTRAL_ELECTRONICS = 0x09,
SECONDARY_AIR_HEATING = 0x0B,
DOOR_SLIDE_LEFT = 0x0D,
MEDIA_PLAYER_1 = 0x0E,
DIGITAL_RAIDO = 0x0F,
PARK_ASSIST = 0x10,
ECU_II = 0x11,
CLUTCH = 0x12,
AUTO_DIST_REG = 0x13,
SUSPENSION_ELECTRONICS = 0x14,
AIRBAG = 0x15,
STEERING_WHEEL = 0x16,
INSTRUMENTS = 0x17,
AUX_HEAT = 0x18,
CAN_GATEWAY = 0x19,
ACTIVE_STEERING = 0x1B,
POSITION_SENSING = 0x1C,
DRIVER_IDENTIFICATION = 0x1D,
MEDIA_PLAYER_2 = 0x1E,
SAT_TUNER = 0x1F,
ECU_III = 0x21,
AWD = 0x22,
BRAKE_BOOSTER = 0x23,
ANTI_SLIP = 0x24,
IMMOBILIZER = 0x25,
AUTO_ROOF = 0x26,
CONTROL_HEAD_REAR = 0x27,
HVAC_REAR = 0x28,
LEFT_LIGHT = 0x29,
INTERCOM = 0x2D,
MEDIA_PLAYER_3 = 0x2E,
DIGITAL_TV = 0x2F,
ENGINE_OTHER = 0x31,
DIFFERENTIAL_LOCKS = 0x32,
LEVEL_CONTROL = 0x34,
CENTRAL_LOCKS = 0x35,
SEAT_MEMORY_DRIVER = 0x36,
NAVIGATION = 0x37,
ROOF_ELECTRONICS = 0x38,
RIGHT_LIGHT = 0x39,
LANE_CHANGE = 0x3C,
SPECIAL_FUNCTION = 0x3D,
MEDIA_PLAYER_4 = 0x3E,
DIESEL_PUMP = 0x41,
DOOR_ELECTRONICS_DRIVER = 0x42,
BRAKE_ASSIST = 0x43,
STEERING_ASSIST = 0x44,
INTERNAL_MONITOR = 0x45,
CENTRAL_CONV = 0x46,
SOUND_SYSTEM = 0x47,
SEAT_REAR_DRIVER = 0x48,
AUTOMATIC_LIGHT = 0x49,
TIRE_PRESSURE_II = 0x4C,
DATA_TRANSFER = 0x4D,
CONTROL_HEAD_RIGHT_REAR = 0x4E,
CENTRAL_ELECTRONICS_II = 0x4F,
ELECTRIC_DRIVE = 0x51,
DOOR_ELECTRONICS_PASS = 0x52,
PARKING_BRAKE = 0x53,
REAR_SPOILER = 0x54,
HEADLIGHT_RANGE = 0x55,
RADIO = 0x56,
TV_TUNER = 0x57,
AUX_FUEL_TANK = 0x58,
TOW_PROTECTION = 0x59,
LANE_MAINTAIN = 0x5C,
OPERATIONS = 0x5D,
CONTROL_HEAD_LEFT_REAR = 0x5E,
INFROMATION_ELECTRONICS = 0x5F,
BATTERY_REGULATOR = 0x61,
DOOR_ELECTRONICS_REAR_LEFT = 0x62,
ENTRY_ASSIST_DRIVER = 0x63,
STABILIZERS = 0x64,
TIRE_PRESSURE = 0x65,
SEAT_REAR = 0x66,
VOICE_CONTROL = 0x67,
WIPER_ELECTRONICS = 0x68,
TRAILER = 0x69,
BACKUP_CAMERA = 0x6C,
TRUNK_ELECTRONICS = 0x6D,
CONTROL_HEAD_ROOF = 0x6E,
CENTRAL_CONV_II = 0x6F,
BATTERY_CHARGER = 0x71,
DOOR_ELECTRONICS_REAR_RIGHT = 0x72,
ENTRY_ASSIST_PASS = 0x73,
CHASSIS_CONTROL = 0x74,
TELEMATICS = 0x75,
PARK_ASSIST_II = 0x76,
TELEPHONE = 0x77,
DOOR_SLIDE_RIGHT = 0x78,
AUX_HEAT_II = 0x7D,
CONTROL_HEAD_DASH = 0x7E,
INFORMATION_ELECTRONICS_II = 0x7F,
LT3_ENGINE = 0x91,
LT3_TRANSMISSION_ = 0x92,
LT3_IMMO = 0x93,
LT3_AIRBAG = 0x94,
LT3_ESP = 0x95,
LT3_INSTRUMENTS = 0x96,
LT3_TRIP_RECORDER = 0x97,
LT3_TIRE_PRESSURE = 0x98,
LT3_IGN_SWITCH = 0x99,
LT3_CENTRAL_LOCKS = 0x9A,
LT3_DRIVER_DOOR = 0x9B,
LT3_HVAC = 0x9C,
LT3_AUX_HEAT_FUEL = 0x9D,
LT3_AUX_HEAD_ELEC = 0x9E,
LT3_STAT_HEAT_WATER = 0x9F,
LT3_RADIO = 0xA0,
LT3_NAVIGATION = 0xA1,
LT3_CD_CHANGER = 0xA2,
LT3_TELEPHONE = 0xA3,
LT3_ROOF_DISPLAY = 0xB0,
LT3_UPPER_CONSOLE = 0xB1,
LT3_PARK_ASSIST = 0xB2,
LT3_TRAILER_MODULE = 0xB3,
LT3_CENTRAL_ELECTRONICS = 0xB4,
LT3_SPECIAL_FUNCTION = 0xB5,
LT3_STEERING_WHEEL = 0xB6,
LT3_BATTERY_MANAGEMENT = 0xC1,
LT3_SLIDE_DOOR_LEFT = 0xD2,
LT3_SLIDE_DOOR_RIGHT = 0xD3
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